Reception

By @Admin | June 21, 2018

0 Comment

Part A

Which of these receptors is NOT a membrane receptor?

Correct

This receptor is not associated with the plasma membrane.

Part E

The binding of signal molecules to _____ results in the phosphorylation of tyrosines.

Correct

The binding of signal molecules to tyrosine-kinase receptors activates tyrosine-kinase enzymes, which phosphorylate tyrosines.

Part F

Which of these receptor molecules would allow Na⁺ to flow into the cell?

Correct

This is an ion-channel receptor.

Part G

Which of these extracellular signal molecules could diffuse through a plasma membrane and bind to an intracellular receptor?

Correct

Nonpolar molecules can diffuse through the plasma membrane and bind to intracellular receptors.

Part H

A(n) _____ is an example of a signal molecule that can bind to an intracellular receptor and thereby cause a gene to be turned on or off.

Correct

Steroids bind to intracellular receptors, which can then bind to, and regulate, the expression of genes.

Part I

_____ is a signal molecule that binds to an intracellular receptor

Correct

Steroids are nonpolar and can diffuse through the plasma membrane.

Part J

Thyroid hormones bind to _____ receptors.

Correct

Thyroid hormones are able to pass through the plasma membrane.

Think!